Wafer boat



FIG. 1 is a perspective view of the design for a wafer boat in accordance with the invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a sectional view thereof along line 8—8 of FIG. 6; and,

FIG. 9 is a sectional view thereof along line 9—9 of FIG. 2.

In the drawings, the left-hand side of each figure is regarded as the top of the figure. 

The ornamental design for a wafer boat, as shown and described. 